Model year

2023 Peterbilt 579

Heavy truck, diesel, 6x4, built in United States. Owner complaints on file from May 21, 2023 to Jan 15, 2026.

Recall campaigns covering this model year11424k vehicles or units across those campaigns
Owner complaints33.0 times the median 2023 heavy truck
Severity index0.02023 heavy trucks average 20.7
First 24 months1Complaints in its first two years
Complaints over time

Complaints about the 2023 Peterbilt 579 peaked in 2023, with 1 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.250.50.75120231202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

67% of complaints about the 2023 Peterbilt 579 name powertrain

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Powertrain
2
Visibility and wipers
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

11 recall campaigns cover the 2023 Peterbilt 579

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2023 Peterbilt 579
CampaignFiledSubjectComponentVehiclesRemedy
25V-181Mar 24, 2025High voltage (HV) contactors may open, causing a sudden loss of high voltage and a loss of drive powerElectrical system238Software update
24V-915Dec 9, 2024Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioningElectrical system220,764Software update
24V-190Mar 20, 2024Right-hand gear shifter stalk connectors may have been improperly crimped, resulting in a loss of communicationPowertrain70,509Part replacement
23V-653Sep 27, 2023U-bolts that attach the air tank to the chassis may contact the fuel tank and over time, wear a hole in the tankFuel system1,315Part replacement
23V-423Jun 13, 2023Fastener on the front spring bracket may have been installed with the head on the outside of the frame rail, which can chafe and damage the…Electrical system4,967Part replacement
23V-185Mar 20, 2023Intellipark Tractor Park Valve Module (PVM) may intermittently become stuck in the un-parked position and fail to move into the park position when…Brakes25Part replacement
23V-007Jan 16, 2023Incorrect software in the battery electric heavy duty electronic stability control program may underestimate the mass of the vehicleStability and traction control46Software update
22V-940Dec 16, 2022Molded hood mirror assemblies may break at the pivot joint and, if unsecured by a harness or tether, can fall into the roadwayVisibility and wipers2,565Part replacement
22V-779Oct 17, 2022Digital display may freeze and not display critical safety informationElectrical system74,730Software update
22V-631Aug 17, 2022Engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stallEngine and cooling1,601Part replacement
22V-547Jul 28, 2022Steering gears may have been assembled incorrectly, which can cause the gears to fractureSteering47,500Part replacement
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2023 Peterbilt 579

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

3 complaints on file, page 1 of 1.

  1. Filed Jan 15, 2026Failure Dec 12, 2025Lawton, MIPower train

    Peterbilt has a recall 24V190 for the right hand shifter stalk. This VIN is not on the recall list however it does have the defective shift stalk and has been replaced 3 times prior to the recall. The most recent replacement was 8/20/24 replaced with the same defective part #. How do I get this truck on the recall list?

    NHTSA complaint 11711116
  2. Filed Sep 17, 2024Failure Jul 1, 2024Kennesaw, GAVisibility/wiper

    While driving in the rain, the wipers would not work. The driver tried and tried to work the switch but the wipers would not work. Later, the wipers would work. At times the wipers work, at times they don't. We took the truck to the Peterbilt dealer and the problem could not be duplicated, they offered no solutions, no direction other than to bring it back when it happens again.

    NHTSA complaint 11615040
  3. Filed May 21, 2023Failure May 12, 2023Waterford, CAPower train

    1. The components that malfunctioned were the "engine/transmission match" and "transmission communications failure idle torque limit". Yes, my unit is available for inspection at any time. 2. When I had to stop on the freeway due to heavy traffic, the gearshift would not budge, causing an even bigger traffic delay. I had to turn off/on my unit multiple times to be able to pull over, safely. If I were not able to change gears while on the road, it could create a big accident due to faulty parts. 3. Yes, my local Peterbilt is aware of this issue and ordered a "right hand turn stalk shift" (part# Q21-6155-211X) to fix the issue. I was told that this replacement part was out of stock and may need to wait up to 3 months for it. I called other Peterbilt's in CA but everyone was out of stock, with 20 to 30 trucks also waiting for the same part. I even called Canada to see if they had parts, but they are also out of this particular part, with a long waitlist of trucks at their dealerships. Peterbilt had to recall the gearshifts on their units back in 2018: https://www.truckinginfo.com/278812/kenworth-peterbilt-trucks-recalled-for-transmission-gear-display 4. There were no prior indications that the gearshift needed inspection. The vehicle only indicated "Transmission fault" when the gearshift became stuck. When I put my unit in "Drive" the dashboard showed an "!" and when I put my unit in "R" the dashboard showed the unit was in "Drive". These incorrect messages/gear changes can be very dangerous. My unit is a 2023 Peterbilt 579 with only 90K miles, there is no reason it would have a faulty gearshift and no reason why each dealership has a waitlist of 20-30 trucks waiting for this exact part. Paccar clearly did not learn from the 2018 recall 118-A. I believe Peterbilt is knowingly manufacturing faulty parts in an effort to make as many sales as possible. These faulty parts need immediate attention but are completely out of stock nationally.

    NHTSA complaint 11523128
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

90 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

  • P001 Sep 11, 2026 · Service Bulletin/Repair Instructions
    "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
  • E343 Sep 5, 2026 · Service Bulletin/Repair Instructions
    An exhaust manifold slip joint seal kit is now available for EPA 2017-2024 PACCAR MX-13 engines.
  • 01-093 Aug 20, 2026 · Service Bulletin/Repair Instructions
    "KW: On certain T680 BEV chassis, installing an updated A/C suction line between the A/C compressor and thermostatic expansion valve (TXV) will help maintain optimal performance and protect the evaporator core tubing and TXV seals. PB: On certain Model 579…
  • 24KWL/PBL Aug 13, 2026 · Service Bulletin/Repair Instructions
    The verbiage in the Introduction section has been updated.
  • 43-088 Aug 13, 2026 · Service Bulletin/Repair Instructions
    The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (VECU2) and digital display (DD). Steps have also been added to the PACCAR Common Rail Injection 2 (PCI2) software verification.
  • E316 Aug 1, 2026 · Service Bulletin/Repair Instructions
    235 chassis have been removed from the chassis list and unflagged in PRWS due to expiration of applicable warranty coverage. 5 chassis have been added to the chassis list. The total chassis population is now 15,637.
  • 46-020 Jul 22, 2026 · Service Bulletin/Repair Instructions
    Certain unaffected chassis have been removed from the chassis population.
  • 43-088 Jul 21, 2026 · Service Bulletin/Repair Instructions
    This optional software update is now available for chassis equipped with EMY 2021B-2023 PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service their trucks before a DEF-related derate occurs. The software is being off…
  • 41-029 Jul 18, 2026 · Service Bulletin/Repair Instructions
    Incorrect air filters may be inadvertently installed in certain chassis equipped with under-hood Donaldson air filter housings.
  • E316 Jul 10, 2026 · Service Bulletin/Repair Instructions
    The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage.
  • 43-088 Jul 7, 2026 · Service Bulletin/Repair Instructions
    "The software is not yet available. The bulletin will be updated when more information is available."
  • 43-088 Jun 29, 2026 · Service Bulletin/Repair Instructions
    "An optional software update will be available on 07/06/2026 for chassis equipped with EMY 2021B-2023PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service theirtrucks before a DEF-related derate occurs. The software …
  • CE033 Jun 25, 2026 · Warranty Program/Extension
    "KW & PB 14 fuel injector part numbers (seven for MX-11 and seven for MX-13 engines) have been added to this warranty policy."
  • CE033 Jun 24, 2026 · Service Bulletin/Repair Instructions
    "KW & PB 14 fuel injector part numbers (seven for MX-11 and seven for MX-13 engines) have been added to this warranty policy."
  • 43-080 Jun 3, 2026 · Service Bulletin/Repair Instructions
    "KW: A new recommended repair has been added to verify the software level and close the campaign in SIR.The repair procedure has been updated with additional note boxes for clear instructions. PB: The repair procedure has been updated with additional note …
  • R2601 May 29, 2026 · Service Bulletin/Repair Instructions
    Updated primary and/or secondary chassis modules for certain pre-production Kenworth chassis are now available for installation.
  • E335 May 15, 2026 · Service Bulletin/Repair Instructions
    Warranty section has been updated to include hood length definitions and filing instructions for progressive damage.
  • 02-177 May 6, 2026 · Service Bulletin/Repair Instructions
    Troubleshooting procedures for 2.1m cab power windows are now available.
  • 43-087 May 5, 2026 · Service Bulletin/Repair Instructions
    (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation.
  • 41-024 May 1, 2026 · Service Bulletin/Repair Instructions
    Procedures have been updated to include additional truck models in the service intervals table.
  • 43-087 Apr 4, 2026 · Emissions
    EMY21-25 GHG Label Replacement (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation. (PB) Certain Model 367 / 389 / 567 / 579 / 589 have updated GHG labels available for order and installation.
  • 42-064 Apr 30, 2026 · Service Bulletin/Repair Instructions
    Fix-as-Fail On certain Kenworth T680 chassis equipped with PACCAR MX-13 engines, wiring to the Horton LCX230 crank-mounted fan drive may experience a short due to chafing or water ingress, affecting fan drive operation.
  • 43-087 Apr 28, 2026 · Service Bulletin/Repair Instructions
    (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation. (PB) Certain Model 367 / 389 / 567 / 579 / 589 have updated GHG labels available for order and installation.
  • 45-070 Apr 17, 2026 · Service Bulletin/Repair Instructions
    The attached procedures document has been updated with more detail and explanations. This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes.
  • 14-034 Apr 16, 2026 · Service Bulletin/Repair Instructions
    Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.
  • E335 Apr 11, 2026 · Emissions
    E335 Warranty wording update Apr 2026
  • E338 Apr 30, 2026 · Service Campaign
    Certain EPA21 PACCAR MX engines are equipped with PHINIA fuel injectors that do not meet PHINIA’s manufacturing specifications.
  • E326 Apr 1, 2026 · Emissions
    EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.
  • 01-090 Mar 28, 2026 · Service Bulletin/Repair Instructions
    Bulletin Update 03/02/2026 - A Meritor OnTrac case submission is required prior to repairs being completed. Failure to do so may result in warranty claim denial. See the procedure section for more details.
  • 41-024 Mar 11, 2026 · Service Bulletin/Repair Instructions
    Engine Air Filter Servicing UPDATE - Procedures are available to support the maintenance, service intervals, and intake system inspection process for all engine air intake system components.
  • 14-036 Mar 4, 2026 · Other
    One-Piece Aluminum Crossmember Repair - Repair procedures are available to support the replacement of intermediate or midship one-piece aluminum crossmembers.
  • 22KWE/PBE Mar 3, 2026 · Service Bulletin/Repair Instructions
    Sheppard Recall Order Process Update - The Parts section has been updated with revised steps for opening a TCS365 Order Support – Order Inquiry case.
  • 24PBE_KWE Feb 11, 2026 · Service Bulletin/Repair Instructions
    The Parts section has been updated to clarify that freight charges for safety recall orders should not be passed on to the end customer.
  • CE031 Feb 27, 2026 · Warranty Program/Extension
    Fuel Injection Pump part number 2344776PEX for MX-13 engines has been added to this warranty policy.
  • 45-070 Jan 31, 2026 · Service Bulletin/Repair Instructions
    Procedure pictures updated for clarity. When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process bu…
  • 25PACF Dec 23, 2025 · Service Bulletin/Repair Instructions
    Parts and procedures are now available for all affected chassis equipped with Vehicle Electronic Control Unit (VECU) part number Q21-1157-013-011 / Q21-1157-013-013 / Q21-1157-002-002 / Q21-1157-004-004 / Q21-1157-006-006 / Q21-1157-009-009. See attached Pa…
  • FS015 Nov 10, 2025 · Service Bulletin/Repair Instructions
    Certain chassis equipped with a PACCAR TX-12 transmission have Mechatronic Transmission Module (MTM) rail cylinder cap screws that could become loose. This may cause the transmission not to shift and the transmission service lamp to illuminate.
  • 46-019 Nov 4, 2025 · Service Bulletin/Repair Instructions
    Repair procedures and warranty information for model 520EV are now available. Certain Peterbilt 579EV and 520EV chassis have the First Responder Guide (FRG) label incorrectly showing the cut loop on the wrong side and are missing the Low Voltage Battery Dis…
  • 01-090 Nov 4, 2025 · Service Bulletin/Repair Instructions
    Repair procedures and warranty information for model 520EV are now available. The cab heater coolant system on Peterbilt 579EV and 520EV models may not deaerate properly, causing pump malfunctions and inadequate cab heating. Update coolant deaeration return…
  • 24PBE Nov 26, 2025 · Service Campaign
    The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right-hand shift stalk and the vehicle may result in the vehicle being disabled after it comes to a stop, thereb…
  • 25PACF Aug 1, 2025 · Service Campaign
    Procedures are now available for Phase 1 chassis equipped with Internal Combustion Engines (ICE) and Vehicle Electronic Control Unit (VECU) part number Q21-1157-013-011 / Q21-1157-013-013. Parts and procedures for Phase 2 chassis will be available at a late…
  • CE033 Jul 3, 2025 · Warranty Program/Extension
    32 fuel injector part numbers (16 for MX-11 and 16 for MX-13) have been added to this warranty policy.
  • E318 Jun 7, 2025 · Service Bulletin/Repair Instructions
    Newly designed fuel injectors are available for EPA2021 compliant PACCAR MX-series engines to optimize engine performance. Injectors must be replaced as a full set (6 injectors) and associated software must be updated at the same time.
  • T016 / 26-040 May 22, 2025 · Service Bulletin/Repair Instructions
    T016: Warranty section updated to include 0.5 hours for test drive. Recommended Repair T016C has been updated from 6.4 hours to 6.9 hours. SRT codes updated in PRWS Claim Coding Table: B25-17A for 6.9 hours created to replace all other codes. 26-040: Warra…
  • 98-030 May 31, 2025 · Service Bulletin/Repair Instructions
    5/29/2025: A new Ethernet Multiplexed Architecture (EMUX) Service Tool Kit service manual (SM034-022) has been released to provide general use information. The new EMUX Service Tool Kit improves cab & chassis electrical troubleshooting efficiency, while red…
  • 25PBC Apr 8, 2025 · Service Bulletin/Repair Instructions
    Safety Recall – Interim Notification Certain Battery Electric Vehicle (BEV) chassis equipped with certain Accelera High Voltage Interlock Loop (HVIL)circuit configurations may experience a sudden loss of high voltage power with unintended opening of electri…
  • 46-016 Apr 30, 2025 · Service Campaign
    4/29/2025: Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves certain functions. Software update procedures have been revised. Campaign start date is 12/05/2024. Campaign A sof…
  • 25PBC Apr 30, 2025 · Service Bulletin/Repair Instructions
    Certain Peterbilt Battery Electric Vehicle (BEV) chassis equipped with certain Accelera High Voltage Interlock Loop(HVIL) circuit configurations may experience a sudden loss of high voltage power with unintended opening of electrical contractors, which may …
  • E327 Feb 27, 2025 · Emissions
    "Vehicles equipped with PACCAR MX engines with Engine Software Version NA202 or NA206 may display a dash STOP lamp incorrectly. PCI-2 software on these chassis must be reverted from NA202 to NA201 (Pack 2 injectors) or from NA206 to NA191 (Pack 1 injectors…
  • 46-013 Feb 5, 2025 · Service Campaign
    Certain Peterbilt 579EV and 520EV Battery Electric Vehicles were built prior to the availability of certain labels and Low Voltage Distribution System (LVDS) Components. Affected chassis will be inspected and necessary components will be installed.
  • 24PBL Jan 10, 2025 · Service Bulletin/Repair Instructions
    Safety Recall Updated software and procedures are now available. Certain Vehicle Model Year 2021-2025 Peterbilt chassis configured for trailer towing require a software update for the Bendix EC80 ABS ECU. Software update procedures for certain Battery-Elect…
  • 32-025 Nov 22, 2024 · Service Bulletin/Repair Instructions
    Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary…
  • 46-011 Nov 27, 2024 · Service Bulletin/Repair Instructions
    Some 579EV and 520EV BEV trucks may have loose or improperly torqued ESS gland nuts. This may cause an intermittent warning light on the dash display.
  • E290 Sep 24, 2024 · Service Bulletin/Repair Instructions
    FIX-AS-FAIL Updated to include EPA2024 compliant engines. Fuel Filters must be changed before first cleaning. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Discard any previous versions of E2…
  • 98-030 Sep 14, 2024 · Service Campaign
    Information Only New diagnostic tool is required to support PACCAR Ethernet Multiplexed Architecture (EMUX). The EMUX Service Tool Kit will help improve cab & chassis electrical troubleshooting efficiency, while reducing the risk of component damage.
  • 46-014 Sep 19, 2024 · Service Bulletin/Repair Instructions
    Information Only Storage guideline procedures are now available for both Medium Duty and Heavy-Duty Battery Electric Vehicles.
  • E316 Aug 16, 2024 · Service Bulletin/Repair Instructions
    Bulletin updated to include oil pan drain plug in parts list and incorporated QR code to direct dealers to informational resources for new Programmable Torque Tool.
  • 46-001 HVAC Update Aug 2, 2024 · Other
    BEV Phase 2 tools have been added to the BEV required tools lists.
  • 16-044 Jul 30, 2024 · Service Bulletin/Repair Instructions
    Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to toggling over center during rough road conditions. With full suspension articulation, HCV bracket flexes and toggles over center the HCV linkage, which res…
  • 36-191 May 16, 2024 · Service Bulletin/Repair Instructions
    Information Only Vehicles equipped with Digital Vision System (DVS) Mirror Mounted Cameras, that do not have optional left-hand or right-hand blind spotters, may set false Diagnostic Trouble Codes (DTC) 522490-9 or 522491-9. These DTCs can be ignored if cor…
Source: NHTSA manufacturer communications files.